Oscillating fan-motor.



No. 888,435. PATENTED MAY 19, 1908.

H. R. WELLMAN, DBGD.

E. W. WILLARD, ADMINISTRATOR.

OSCILLATIN G FAN MOTOR.

APPLICATION FILED MAR. 30, 19

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PATENTED MAY 19, 1908.

H. R. WELLMAN, DECD. E. w. WILLARD, AmUNIsTMToR.

OSGLLATING FAN MOTOR.

APPLIUATION IXLED MAB.. 30, 1906.

2 SHEETS-SHEET Z.

I described by reference UNITED sTATEs ERASTUS W. WILLARD, OF JOLIET,

ILLINOIS, ADMINISTRATOR DECEASED.

A,PATENT zonuren.

oFHARoLD R. WELLMAN,

OSCILLATING FAN-MOT No. sas-,435

Specication of Letters Patent.

Application filed March 30, 1906. Serial No. 308,879.

the following is a full, clear, concise, and ex-I act description.

is invention relates to an oscillating motor driven fan, and has for its object to provide improved means for effecting the oscillatory movement of the fan.

Generally speaking, this invention contemplates a reciprocally mounted motor driven fan rovided with movable vanes carried upon t e guard casing of the fan blades, said vanes. being adapted to alternately screen the sides of the front of the fan, thus producing an unbalanced effect in the beam of air delivered, causing the fan to oscillate or turn from one side to' the other as it rotates. Means are provided, actuated in the oscillation of the fan, for o erating said vanes.

The invention Wi be more particularly to the accompanying drawings, lwhich illustrate the preferred form of the invention, reference being had to the Soappended claims for a statement ofthe arts,

improvements and combinations whici are deemed novel.

In the drawings, Figure 1 is a front View of an oscillating fan einI odying the invention; Fig. 2 is a sectional' plan View on line 2-2 of Fig. 1; Fig. 3 is a longitudinal sectional view on line 3 3 of Fig. 1 and Fig. 4 is a detail perspective view of the spiral cam.

Similar letters of reference designate like parts throughout the several views.

The'fan shown as e uipped with my invention belongs to a we l-known type of electrically operated fans, the motor, however,

being pivoted tp permit its oscillating move-v ment. The guard caslng a, wlnch protects the fan blades, carries a pair of movable vanes b b', which are preferably mounted on a common axis by means ot' pivotal rods b2 b, respectively. The outer ends of said rods areA provided with bearings b carried by the frame, while the inner ends of said rods are secured to opposite ends of a cam c, which is adapted to be operated by the pendulum lever d to reverse the positions of said vanes. The vanes are mounted in planes at right an- I gles to each other so that said vanes will alternately occupy vertical and liori'zontal'positions,.respectively. Thus when the vane b is in a vertical position, which condition would result when the fan reaches the limit of its movement to the left, the left side of the front of the lanl would be screened, and the air delivered by the fan would produce an unequal reaction thereon, the most reaction being resent upon the unscreened side, which woul) right.

arms e e, carried by' the base of the fan, as the fan approaches the limitof its movement in either direction, to actuate said cam c and reverse the position of the vanes, in order that the fan may be swung in the reverse direction. The endulum lever d is pivoted to the to of t e guard casing and extends downwardly, through opposing spiral grooves c in Ithe cam cinto position to be engaged by the arms e, cross bars a a of the guard a coperating with said lever d and sto s e to limit the` movement of the fan. The ever d when operated by either one of the stops e, rides in the s iral slots of the cam c to operate the rods liz lf3 and reverse the positions of the vanes I) b.

I claim 1. The combination with an oscillatory mounted motor driven fan, of a pair of vanes pivotally mounted on o posite sides of the axis ol' rotation of ,the an and disposed in planes at right angles to each other, said vanes being adapted to alternately present their faces and edges to the current of air from said fan/and means controlled in the oscillation of said fan for operating said vanes.-

2. The combination with a reciprocally mounted motor driven fan, of vanes carried by the fan before the fan blades and disposed in planes at right angles to each other, von horizontal axes, sai-d vanes being adapted to alternately screen the sides of` the front of said fan, to oscillate the same, and means for reversing the positions of said vanes in the oscillation of said fan.

3. The combination with a reciproeally mounted motor driven fan, of a casing for the lan blades, vanes disposed in planes at right angles to each other mounted on horizontal axes upon the easing, said vanes being adapted to a ternately assume vertical and Patented May 19, 1908. i

d cause 'the fan to swingto the i The lever d is arranged to be operatediby horizontal positions respectively, to alternately screen the sides of the front of said fan, a cam, a lever adapted to engage said cam to operate said vanes, and means for o erating said lever as the fan approaches t e limit of its oscillation in either direction.

4. The combination With a reciprooally mounted motor driven fan, of a casing for the fan blades, vanes disposed in planes at right angles to each other and mounted in horizontal axes, said vanes being adapted to alternately screen the sides of the front of said fan, a spiral cam, a pendulum lever adapted to engage said cam to operate said vanes, and arms carried by the base of the fan for operatingr said lever as the fan approaches the limit of its oscillation in either direction. f

5. The combination with a pivoted motor l .driven fan, of a guard casing a, vanes b b',

for alternately scre ning the sides of the front of the fan, pivotedrods b2 b3 for said vanes, a spiraloanf'iiting the inner ends of saidlzods, a lever d adapted to ride in slots in said cam to operatesaid vanes, arms e e for operating said lever, and cross bars a 0/ of said casing, adapted to ooperatewith said lever and arms to limit the movement of the fan.

In witness whereof', I hereunto subscribe my name this 23 day of March, A. D. 1906.

ERASTUS W. WlLLAR-D, Administrator of the estate of Harrold R. Well man, cleeease f.

Vitnesses:

JAMES G. ELWooo, WV. E. DEAN. 

